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专门用于内燃机车的单级液力变扭器,主要包括一个离心泵轮(泵轮叶片进口边被拉长,并且叶片是空间弯曲的),一个直接安装在泵轮后面具有单曲叶片的离心涡轮(涡轮出口直径比泵轮出口直径约大15～40％)和一个同样为单曲叶片的向心导向轮。变扭器的最高效率处在转速比n_T/n_P(涡轮转速/泵轮转速)
A single-stage torque converter specifically designed for use on a diesel locomotive mainly consists of a centrifugal pump wheel (the inlet side of the pump wheel blades are elongated and the blades are curved in space), a single- Centrifugal turbine (turbine outlet diameter than the diameter of the pump outlet about 15 ~ 40%) and a centering wheel is also a single blade. Torque converter maximum efficiency at the speed ratio n_T / n_P (turbine speed / pump speed)